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//===-- MockTildeExpressionResolver.cpp -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "MockTildeExpressionResolver.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Path.h"
using namespace lldb_private;
using namespace llvm;
MockTildeExpressionResolver::MockTildeExpressionResolver(StringRef CurrentUser,
StringRef HomeDir)
: CurrentUser(CurrentUser) {
UserDirectories.insert(std::make_pair(CurrentUser, HomeDir));
}
void MockTildeExpressionResolver::AddKnownUser(StringRef User,
StringRef HomeDir) {
assert(!UserDirectories.contains(User));
UserDirectories.insert(std::make_pair(User, HomeDir));
}
void MockTildeExpressionResolver::Clear() {
CurrentUser = StringRef();
UserDirectories.clear();
}
void MockTildeExpressionResolver::SetCurrentUser(StringRef User) {
assert(UserDirectories.contains(User));
CurrentUser = User;
}
bool MockTildeExpressionResolver::ResolveExact(StringRef Expr,
SmallVectorImpl<char> &Output) {
Output.clear();
assert(!llvm::any_of(
Expr, [](char c) { return llvm::sys::path::is_separator(c); }));
assert(Expr.empty() || Expr[0] == '~');
Expr = Expr.drop_front();
if (Expr.empty()) {
auto Dir = UserDirectories[CurrentUser];
Output.append(Dir.begin(), Dir.end());
return true;
}
for (const auto &User : UserDirectories) {
if (User.getKey() != Expr)
continue;
Output.append(User.getValue().begin(), User.getValue().end());
return true;
}
return false;
}
bool MockTildeExpressionResolver::ResolvePartial(StringRef Expr,
StringSet<> &Output) {
Output.clear();
assert(!llvm::any_of(
Expr, [](char c) { return llvm::sys::path::is_separator(c); }));
assert(Expr.empty() || Expr[0] == '~');
Expr = Expr.drop_front();
SmallString<16> QualifiedName("~");
for (const auto &User : UserDirectories) {
if (!User.getKey().startswith(Expr))
continue;
QualifiedName.resize(1);
QualifiedName.append(User.getKey().begin(), User.getKey().end());
Output.insert(QualifiedName);
}
return !Output.empty();
}
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